Thanks for the kind words !
There is indeed a very (VERY) cool secret to be found, when you find all the fish and 100% the game, don't let it end and try to trace back your steps, a long long way back...
I figured it after a 3rd run (i have a bad habit of finding glitches in games xD). Thanks for the tips anyway, now i know the RIGHT way of doing it.
EDIT: After "you know what" the game closed itself. Is that normal?
yes it is :) good job finding it !